减氮配施生物菌肥对玉米产量及生物性状的影响

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中图分类号：S144 文献标识码：A 文章编号：1006-060X（2025）09-0044-05

Abstract：Thisstudyinvestigates theefectsofnitrogenreductioncombined with microbial fertlizerapplicationontheyieldand biologicalraitsofmaize，aiming toexploretheoptimalratioofmicrobialfertlizertonitrogen fertilizerimaizeproduction.The intelligent greenhouse pot experiment was carried out with 7 fertilization treatments： no fertilizer （CK）， 100% nitrogen fertilizer （A）， 80% nitrogen fertilizer + 20% microbial fertilizer （B）， 60% nitrogen fertilizer + 40% microbial fertilizer （C）， 40% nitrogen fertilizer + 60% microbial fertilizer （D）， 20% nitrogen fertilizer +80% microbial fertilizer （E），and 100% microbial fertilizer （F）. The results showed thatcompared with CK，thetreatment Cshortened the growth period of maize ateachstage，while signifcantlyincreasing theupper leaf area，plant height，and earweight by 22.90% 5 14.29% ，and 156.29% ，respectively.Compared with the treatmentA， the treatment C shortened thewhole growth period by 1.9d ，while increasingtheplantheight，ear height，stemdiameter，ear length，and earweight by 4.35% 3.04% 4.29% 0 31.62% ，and 44.40% ，respectively.Thecorrelationanalysisindicated that theapplicationamount ofmicrobialertilzerasposiivelyoelatedwithtegothperodandnegativelyoeatedwiththa-eafra，panthight earheight，stedmeter，arlngth，arameterarength，arweight，adkeelweight.eresultsipledate was an appropriate range for the application amount of microbial fertilizer.Microbial fertilizer replacing 40% of nitrogen fertilizer can achieve the synergistic improvement of the yield and biological traitsofmaize.

Keywords：maize;microbial fertilizer;combined application;biological traits; yield

玉米（ZeamaysL.）由大刍草驯化而来[1-3]，经长期改良[4，已适应多样化的耕作环境，成为全球高产作物之一[5]，但其高产性仍高度依赖农业技术的投入。（剩余9358字）